ext4: Combine proc file handling into a single set of functions
Previously mballoc created a separate set of functions for each proc
file. This combines the tunables into a single set of functions which
gets used for all of the per-superblock proc files, saving
approximately 2k of compiled object code.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index b9c9371..163c4452 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -957,6 +957,22 @@
extern struct proc_dir_entry *ext4_proc_root;
+#ifdef CONFIG_PROC_FS
+extern const struct file_operations ext4_ui_proc_fops;
+
+#define EXT4_PROC_HANDLER(name, var) \
+do { \
+ proc = proc_create_data(name, mode, sbi->s_proc, \
+ &ext4_ui_proc_fops, &sbi->s_##var); \
+ if (proc == NULL) { \
+ printk(KERN_ERR "EXT4-fs: can't create %s\n", name); \
+ goto err_out; \
+ } \
+} while (0)
+#else
+#define EXT4_PROC_HANDLER(name, var)
+#endif
+
/*
* Function prototypes
*/